Ventilating window lock



Nov.- 4, 1930. A. PRIMAS VENTILATING wINDow Loox Filed Jan. 19, 1929 TRy,

Patented Nov. 4, 1930 UNITED STATES PATENT OFFICE ALEXANDER PRIMAS, OF BUFFALO, NEW YORK, ASSIGNOR OF ONE-FOURTH TO JOHN Y Gr. MULLER, 0F BUFFALO, NEW YORK VENTILATING WINDOW LOCK Agpncation ined January 19, 192s. serial No. 333,534.

My invention relates to improvements in Ventilating window-loclzsaand it has for its primary object the provision of a simple and inexpensive lock whichv can be manufactured economically in large quantities, and which is adapted to be sold at a price within the reach of the lowest price chain store enterprises.,

Another object of my invention is to provide a window-lock having a bolt member tending at all times to automatically engage one of the Stiles of the upper window-sash by gravity, and which is so supported that in attempting to lower the .upper window-sash or raise the lower window-sash, it will automatically cause the sashes to be locked.

A further object of my invention is to provide a window-lock which will serve to force the window-sashes against the window stops with a view of preventing rattling of the windows, if loosely guided between the stops, regardless of the positions the sashes may be in.

A further object of my invention is to provide a window-lock which has a friction rubber contact surface adapted for engagement with the inner side of one of the stiles of an upper window-sash.

A further object of my invention is to provide a window-lock of this type, which will permit either the upper or lower, or both` sashes of a window to be opened to any desired degree, and be effectively locked when so opened.

A still further obj ect of my invention is the provision of a window-lock which can be stamped out of sheet metal, yet be so constructed that the parts thereof have wide contact surfaces; thus adding considerably to the rigidity of the device, preventing binding during the relative movement of the parts, and assuring free action under all conditions of use.

lVith the above and other objects in view to appear hereinafter, my invention consists in the novel features of construction and in the arrangement and combinationof parts to be hereinafter described and more particularly pointed out in the subj oined claims.

In the drawings Fig. 1 is an interior view of a window showing my improved lock applied to the lower window-sash and in locking position against the upper window-sash.

F ig. 2 is a longitudinal section taken on line 2 2, Fig. l, on a somewhat enlarged scale.

Fig. 3 is a detached perspective view of the complete lock. Y

Fig. 4: is a central vertical section of the lock as applied to the lower window-sash, and shown in co-action with one of the Stiles of the upper window-sash.

Fig. 5 is a horizontal section taken on line 5-5, Fig. 4.

Fig. 6 is a detached perspective view of the metallic portion of the bolt member of the devicebefore applying the bolt or friction block thereto.

y Fig. 7 is a detached perspective view of the release lever and its supporting pin.

Fig. 8 is a bottom view of the supporting member of the device.

Referring to the drawings in detail, the numeral l0 designates the interior window trim of a window, 11 the upper window-sash, 12 the lower window-sash, and 12a the window stops between which the window-sashes are slidably arranged. 13 designates my improved ventilating windowlock considered as a whole, and it is adapted to be secured to the upper edge of the lower window-sash, as hereinafter described, or in any other approved manner. f

rlhis improved windowelock comprises a supporting vmember 14, a bolt member 15 slidably mounted on said supporting member, and a release lever l'pivotally secured to said supporting member and having the bolt member in engagement therewith. All of these parts, with the exception of a bolt or friction block, forming part of the bolt member to be hereinafter more particularly described, are constructed of sheet metal stamped into desired shape or formation.

rlhe supporting member comprises a fiat base plate 17 having a pointed prong 18 stamped therefrom centrally between its side edges and two upstanding spaced side members 19 rising from the base plate and between which the release lever 16 is disposed.

The base plate or member 17 is transversely widened at its inner end to form securing ears 20, which are provided with screw holes 21 through which fastening screws 22 are passedthat are screw-threaded into the meeting rail 3 of the lower window-sash. Vhen applying the supporting member to the meeting rail, the pointed prong 18, which is in a plane forward of said securing ears, is driven into the meeting rail to assist in securely hold,- ing the supporting member'in position.

rlhe upstanding spaced side members 19 have their outer longitudinal marginal portions bent outwardly at rightangles thereto to provide outstanding guide flanges 24: along their outer edges. These flanges form comparatively wide bearing surfaces 25 for riding Contact thereon of the metallic portion of the bolt member 15; and at their upper ends, the flanges 24 are provided with outstanding ears 26 serving as stops, as will hereinafter appear.

The front edges of the side members 19 are upwardly and inwardly inclined; as best shown in Fig. 4i, or in other words, recede upwardly and are therefore disposed at a slight angle to the inner face of the stile against which the device is to be locked.

The bolt member of the device is sli dably arranged on two spaced side members, and like the latter has its body portion formed of sheet metal. lt comprises a transverse member 27 narrowed at opposite -ends and having said narrowed portions bent inwardly, thence toward the center of the transverse member 27 to form L-sha-ped guide ears 28 which embrace the guide flanges 24 on the side members 19. Said transverse member is flat from guide ear to guide ear, and it is further provided at its upper and lower ends with clench flanges 29 normally disposed at right angles thereto, but being adapted to be pressed toward each other, as indicated in Fig. t, to clench a rubber or other bolt or friction block 30 gradually tapered downwardly so that its outer surface is in a plane parallel with the plane of the inner surface of the stile 31 of the upper window-sash.

By reason of the frontedges of the upstanding side members receding upwardly, they gradually approach the inner surface of the stile against which the locking member is adapted to bear. Consequently, the downward movement of said bolt member has a component outward movement against said stile and tends, under gravity, to assume its lowermost position at all times, which causes the outer or contact surface of the bolt or friction block 30 to engage the inner face of the stile 31. Upon lowering the upper window-sash or raising the lower window-sash, the tendency of said bolt or friction block is to more firmly impinge against the face of said stile and cause the windows to be locked unless released during such action by the lever 16.

The release lever 16 is also stamped from sheet metal and is pivotally mounted on a pin 32 spanning the space between the two side members and fastened into said side members. lf desired, this pin may have a head 83 at one end, and after being mounted in the side members, its other end is upset,

'as at 34. rllhe release lever 16 is slit engthwise along a limited region between its ends, as at 35, two slits being preferably made in the metal in spaced relation to each other and also in spaced relation to the .side edges of the lever; the metal between the slits and said side'edges beingbulged in one direction, as at 36, while the metal between the slits is bulged in an opposite direction, as at 37. Vlhe pivot pin 32 is inserted through the lever so that the bulges are at one side of the pin while the bulge 37 is at the other side thereof. 'lhis maires simple and inexpensive construction and assures free operation of the lever, owing to the fact that by thus providing a pin-bearing in the lever, a lose support is provided for the lever and binding of the lever on the pin avoided.

The inner end portion of the release lever serves as a handle for the same, and l have designated this portion by the numeral 35S, while the outer end or actuating portion -it of said lever is adapted to extend underneath the bolt member 15, and may or may not be in contact therewith, depending on whether or not the handle portion of the lever over-balances the actuating portion thereof. ln the drawings l have shown the handle portion of the lever slightly longer than the actuating portion, with the result that the last-mentioned portion will at all timos be in contact with the under side of the bolt member, regardless of whether said belt member is under locking action or merely in lslight contact with the stile 31 of the upper window-sash, but in any event, this release lever prevents disconnection of the bolt member from the supporting member of the device, even though the device is not cured to a window, due to the fact that the outer end of said release lever will, under the weight of said bolt member, be lowered against the outer end of the base 17 and serve as a stop to prevent said bolt member from becoming disengaged from the flanges 2l by downward movement thereon, while the stop lugs 26 prevent diseng gement of said bolt member by movement upward along said flanges. ln Fig. 3 the drawings l have shown the bolt member in a position on the supporting member which it assumes when the friction block 30 of l bolt member is in contact with a windowsash, but when said device is disengaged from a window, said bolt member will be in llfl ber resting upon the actuating end of said release lever. W'hen the bolt member is in locking contact with thestile of the upper sash,it may be easily released from the stile of the sash by pressing the handle/38 downwardly, which will cause the bolt member to move upwardly and inwardly from the inner face of said stile.v Free and easy release of the bolt member from the window stile is assured byreason of the guide flanges 24 on the supporting member gradually drawing the bolt member away from the inner surface of the stile during the upward movement of said bolt member.

The connection of the bolt member l5 to the supporting member 19, provided through the medium of the angular ears 28,Y

assures free sliding action of said bolt member on the supporting member without possibility of -bindingthereom as an even guide is provided at each side of the supporting member 'for said bolt member; and by providing the front edges of the side members i9 with the outstanding flanges, bearing surfaces of considerable width are provided, which assure long life for the device and also guard against twisting action of the bolt member on the supporting member, which would tend to cause the bolt member to bind, or even become disengaged from the supporting member.

It is to be noted that the spaces between the front edges of the side members 19 and the inner face of the stile 31 are gradually enlarged upwardly, and consequently as the bolt or friction block v3() becomes worn, the bolt member will assume a slightly lower position on the supporting member before effective binding or locking action is assured against the inner face of the stile. The release lever is, however, of suflicient length to extend forwardly underneath the bolt member, regardless of its position on the supporting member.

It will be apparent from the foregoing that this lock device is one which will automatically lock a window when partly opened, eitherby lowering the upper-sash or raising the lower-sash, but it is to be understood that when opening either or both of said sashes, it isnecessary to depress the handle to withdraw the bolt member from the inner face of the stile 31 until the sash, or sashes opened, closely approach the end of their range of opening movement, at which time pressure on said lever will be released to allow the bolt member to engage the inner face of said stile, after which, upon slight further opening movement of the window-sash, the bolt member will firmly impinge against the stile and be automatically locked in position. To release the bolt member with a view of closing the window, it is only necessary to depress the handle of the release lever, whereupon the bolt member will be elevated and withdrawn from the stile, permitting either the upper window-sash to be raised, or the lower window-sash to be lowered, as the case may be. Vhen it is desired to use the device as an antirattler when the windows are closed, it is simply necessary to press the bolt member downwardly on the flanges of the supporting member.

It will also be apparent from the foregoing, that by reason of the tapering or wedee formation of the friction block, the bolt memberof which said friction block forms part, will automatically releasejitself from the stile 3l of the window-sash against which i-t is engaged when moving said sash in closing direction, assuming the sash to have been opened, and that said bolt member will automatically lock itself against said stile in attempting to open said sash when closed, or in attempting to open the sash to a g eater extent, when partly open. In fact, t will 'be understood that the tendency of the eoltniember, owing to its peculiar moun-t-` ing on the supporting member, will tend to become wedged between said supporting member and the stile 3l of the upper windowesash in moving either window sashes in an opening direction, and that when so wedged with either or both window sashes opened, it will automatically release itself upon closing either or both of said sashes.

Y lvihere herein reference is made to theterm inne-1" or outer, these terms are used as applied to the window, the Aterm outer end of the release lever meaning toward the outer sideV of the window, and the inner end, that end toward the inner side of the window.

Having thus described my invention, what l claim is l. A Ventilating window-lock, comprising a supporting member having a securing base and spaced upstanding said members extending from said base, a bolt member slidably mounted on said side members and having' clenching means at its upper and lower ends, :and a friction block clenched in position by said clenching means.

2. A Ventilating window-lock, comprising ,a supporting member having a llat base adapted -to be secured to the upper edge of a lower window-sash and side members spaced apart and extending upwardly from opposite edges of said base, saidiside members being provided at their outer edges withoutstanding guide flanges and having their outer edges, including said guide ilanges, inclined or receding upwardly, a bolt member guided onv said guide flanges and bearing against the front edges of said side members, including a friction block tapered downwardly and adapted for contact with one of the stiles of an upper window-sash.

3. A Ventilating"Window-lock, comprising a supporting member having spaced side members with upwardly receding outer edges and outstanding'flanges at said edges, a bolt memberspanning the space between said side members and provided with guide means at opposite ends for coaction with said flanges, said bolt member including a metallic body portion and a downwardly-tapering friction block transversely co-eXtensive with said body portion and secured to the latter at its upper and lower ends.

4. A Ventilating Window-lock, comprising a supporting member formed of sheet metal and having a flat base and spaced side members extending upwardly from opposite longitudinal edges of said base, said side members having their outer edges receding upwardly and provided with outstanding flanges at said outer edges to provide comparatively wide bearing` faces, a bolt member comprising a body portion and a friction portion, said body portion being formed of sheet metal spanning the space between said side members and lying at opposite ends against the bearing faces at the outer edges of said side members, said body portion having also angular guide ears at opposite ends embracing said guide flanges and clencher flanges at its upper and lower ends engaging the upper and lower sides of said friction portion.

5. A Ventilating Window-lock, comprising a supporting member stamped of a single sheet of metal to form a flat base adapted to be secured to the upper edge of a lower windowsash and spacedY side members extending upwardly from opposite edges of said flat base, the outer marginal portions of said side menibers being bent outwardly at right angles to form guide flanges and said guide flanges being widened at their upper ends to provide stop ears, the so flanged outer edges of said guide members receding upwardly, `a bolt member slidably mounted at the outer edges of said side members, and a release lever disposed between said side members and extending underneath said bolt member.

6. A Ventilating window-lock, comprising a supporting member formed of sheet metal having a flat basetransversely widened at its inner end to provide securing ears and provided with a securing prong centrally between its side edges in a plane forward of said securing ears and spaced side members extending upwardly from opposite sides of said flat base member forward of said securing ears, said spaced side members having their outer marginal portions bent outwardly at right angles to pro-vide guide flanges and to furnish said side members with comparatively wide bearing faces, the outer edges of said side members receding upwardly, a bolt member comprising a body portion and a compressible friction element, said body portion being stamped of sheet metal and comprising a flat transverse portion spanning the space between said side members and lying at opposite ends against the bearing faces at. the outer edges of'said side members, said flat transverse portion having narrowed portions at opposite ends bent angularly around said guide flanges and means at its upper and lower ends to secure said friction element thereto, said friction element being tapered downwardly to provide a perpendicular front surface adapted-for engagement with the stile of a window-sash.

7 A Ventilating window lock, comprising a supporting member having a securing base and spaced upstanding side members extending from said base and provided with outstanding guide flanges along their outer edges, a bolt member having guide ears at opposite sides engaging said flanges and clench flanges at its upper and lower ends, and a friction block for said bolt member clenched in position by said clench flanges,

8. A Ventilating window-lock, comprising a supporting member having spaced side members whose outer edges recede upwardly and are provided with comparatively wide bearing faces, a bolt member held for sliding movement against said bearing faces including a contact member having a perpendicular outer surface, and a release lever pivotally mounted between said side members and formed of sheet metal slit in planes spaced from each other and also from the side edges of said lever, the metal between the slits and said side edges being bulged in one direction and the metal between said slits being bulged in an opposite direction, and a pivot pin having the opposite bulged portions of said lever at opposite sides of said pin, said pivot pin being mounted in said side members and said release lever lying against the under side of said bolt member.

9. A Ventilating window-lock, comprising a supporting member stamped of a single piece of sheet metal to form a flat base and spaced upstanding side members, said side members havingthe metal at their front marginal portions bent outwardly to form guide flanges to provide wide outer bearing faces and said flanges having stop ears at their upper ends, a bolt member comprising a body portion stamped of a single piece of sheet metal to form a flat transverse portion spanning the space between said side members and having opposite ends thereof bearing against the wide bearing faces of said side members and bent around said guide flanges, said flat transverse portion having clench flanges at its upper and lower edges, a friction block transversely co-eXtensive with said flat transverse portion against the upper and lower sides of which said clench flanges are forced, said friclili;

tion block being tapered downwardly, and a release lever pvotally mounted between said side members and adapted to lift or release said bolt member when in binding Contact with a window-sash. Y

In testimony whereof, I affix my signature.

ALEXANDER PRIMAS. 

